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do not allow kernel properties to be set by udev rules

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This commit is contained in:
Kay Sievers 2011-07-18 21:19:00 +02:00
parent 52dd9ef2ef
commit ace6bfa725
1 changed files with 20 additions and 0 deletions
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20
udev/udev-rules.c
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@ -1385,6 +1385,26 @@ static int add_rule(struct udev_rules *rules, char *line,
if (rule_add_key(&rule_tmp, TK_M_ENV, op, value, attr) != 0)
goto invalid;
} else {
static const char *blacklist[] = {
"ACTION",
"SUBSYSTEM",
"DEVTYPE",
"MAJOR",
"MINOR",
"DRIVER",
"IFINDEX",
"DEVNAME",
"DEVLINKS",
"DEVPATH",
"TAGS",
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(blacklist); i++)
if (strcmp(attr, blacklist[i]) == 0) {
err(rules->udev, "invalid ENV attribute, '%s' can not be set %s:%u\n", attr, filename, lineno);
continue;
}
if (rule_add_key(&rule_tmp, TK_A_ENV, op, value, attr) != 0)
goto invalid;
}